JP2010072301A - Label stack and label take-out device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably separate labels one by one and properly take out a label from a label stack with ease when taking out a label with a label take-out device from a label stack where a plurality of labels are stacked. <P>SOLUTION: For taking out a label by a label take-out device 31, 32 from a label stack S1, S2 where a plurality of labels 10A-10D are stacked, notches 11 for separation or projections 13 for separation are formed on the periphery of each label in the label stack in such a manner that the position of the notch for separation or the projection for separation is made different in the stacked vertical labels. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a label laminated body in which a plurality of labels are laminated, and a label take-out apparatus that separates labels from the label laminated body in which a plurality of labels are laminated in this manner and sequentially removes the labels. When the label is taken out from the laminated label laminate by the label take-out device, the label is surely separated from the laminated label one by one and can be easily taken out easily. is there.

  Conventionally, labels with various indications are affixed to the outer peripheral surfaces of various plastic containers.

  And in pasting the label on the outer peripheral surface of the plastic container in this way, in addition to pasting the label provided with the adhesive on the outer peripheral surface of the molded plastic container by peeling it off from the release sheet in order, in recent years Hold the label in the molding die, inject the molding material of the plastic container into the molding die, and melt the adhesive layer provided on the label by the heat at the time of molding the plastic container Thus, in-mold molding labels have been used in which a label is attached to the outer peripheral surface of a plastic container simultaneously with the molding of the plastic container.

  Here, in order to hold such an in-mold molding label in a molding die, generally, a label is sucked and separated one by one by a suction device from a label laminated body in which a plurality of labels are laminated. The label thus separated is guided and held in a molding die.

  However, in the label laminate in which a plurality of labels are laminated as described above, the labels are in close contact with each other, and when the labels are sucked and separated from the label laminate by a suction device, There is a problem in that two or more labels are sucked together and taken out, and defective labels are generated when the labels taken out together in this way are held at different positions in the molding die.

  In particular, in the label for in-mold molding as described above, in general, a label stack in which a plurality of labels are stacked in a state where a plurality of label base materials are stacked and die-cut into a predetermined label shape. As the body is obtained, the peripheries of the labels are pressed together and are in close contact with each other. When separating by suction, there is a problem that two or more closely attached labels are often sucked together and taken out.

  Conventionally, as shown in Patent Document 1, embossing is provided on a part of the surface of the label to reduce the contact area between the label surface and the molding surface of the molding die, and the label surface is molded. It has been proposed to prevent close contact with the molding surface of the metal mold, and to prevent two or more labels from being sucked together and taken out by sticking the labels together.

However, since the embossing provided in a part of the surface of a label is provided in the same position in each label in what is shown in this patent document 1, the embossing in each label fits and the mutual labels are Furthermore, there was a problem that two or more labels were sucked together and taken out.
JP 2003-98968 A

  This invention makes it a subject to solve the above problems in the case of taking out a label from the label laminated body in which the several label was laminated | stacked.

  That is, in the present invention, when taking out a label from a label laminate in which a plurality of labels are laminated as described above by a label take-out device, the labels are reliably separated from the label laminate one by one and properly taken out. It is an object to make it easy to do.

  In the first label laminated body in the present invention, in order to solve the above-described problems, in the label laminated body in which a plurality of labels are laminated, a separation notch is provided at the periphery of each label and laminated. The positions of the separation notches on the upper and lower labels were made different.

  Further, in the second label laminate in the present invention, in order to solve the above-described problem, in the label laminate in which a plurality of labels are laminated, a separation convex portion is provided in the peripheral portion of each label, The positions of the separation convex portions in the upper and lower labels laminated were made different.

  Here, in said 1st and 2nd label laminated body, said label can be used suitably as said label for in-mold shaping | molding.

  Further, in order to solve the above-described problems, the label take-out device according to the present invention separates the labels from the first and second label laminates and sequentially removes the labels. A gas ejection device that blows gas to the label laminated body toward the peripheral portion of the label provided with the convex portion and a suction device that sucks and separates the label located on the uppermost surface of the label laminated body are provided.

  In the first label laminate according to the present invention, as described above, the separation notch is provided in the peripheral portion of each label so that the position of the separation notch in the stacked upper and lower labels is different. In the apparatus, when the gas is blown from the gas ejection device toward the periphery of the label provided with the separation notch, the separation notch in the lower label provided at a position different from the upper label The gas enters and the upper and lower labels are separated by the gas, and only the upper label thus separated is sucked and held by the suction device.

  As a result, in the first label laminate, the labels are surely separated one by one and properly taken out, and the labels are properly held one by one in the molding die, Simultaneously with the molding of the container, the label can be attached to the outer peripheral surface of the plastic container, and can be suitably used as an in-mold molding label.

  Further, in the second label laminate in the present invention, as described above, the separation convex portions are provided in the peripheral portion of each label so that the positions of the separation convex portions in the upper and lower stacked labels are different. In the above label take-out device, when gas is blown from the gas ejection device toward the peripheral portion of the label provided with the separation convex portion, the upper label and the lower label provided at different positions Gas enters the portion of the separation projection between them, and the upper and lower labels come to be separated by this gas, and only the upper label separated in this way is sucked and held by the suction device. It becomes like this.

  As a result, also in this second label laminate, as in the first label laminate, the labels are surely separated one by one and properly taken out, and are placed in the molding die. The labels can be appropriately held one by one, and the label can be attached to the outer peripheral surface of the plastic container simultaneously with the molding of the plastic container, and can be suitably used as an in-mold molding label.

  Next, a label laminate according to an embodiment of the present invention and a label take-out apparatus that separates labels from the label laminate and sequentially picks them up will be described in detail with reference to the accompanying drawings. In addition, the label laminated body and the label take-out device according to the present invention are not particularly limited to those shown in the following embodiments, and can be appropriately changed and implemented within a range not changing the gist thereof.

(Embodiment 1)
In this Embodiment 1, in order to use as a label for in-mold molding, as a label base material 1, as shown in FIG. 1, the surface layer 1a comprised with resin, such as a polypropylene, and the metal layer 1b, such as aluminum, In addition, an adhesive layer 1c composed of a resin such as polypropylene having a melting point lower than that of the surface layer 1a is laminated integrally.

  And in this Embodiment 1, when producing the label 10 stuck on the outer peripheral surface of the cup-shaped plastic container 2 as shown in FIG. 2 by in-mold molding using said label base material 1, FIG. As shown in (A) and (B), two concave cutouts 11 each having a concave shape are formed at appropriate positions of the upper circular arc having a substantially fan-shaped plane and a long arc. Two types of labels 10A and 10B having different positions of two separation notches 11 were produced. Note that the shapes of the labels 10A and 10B are not limited to those having a substantially fan-shaped flat surface, and can be appropriately changed according to the shape of the plastic container 2 to which the labels 10A and 10B are attached. .

  Here, in producing the two types of labels 10A and 10B, as shown in FIG. 4, two types of cutting blades 21A and 21B corresponding to the shapes of the two types of labels 10A and 10B are provided. The cutter roller 20 provided in order in the circumferential direction on the outer peripheral surface of the roller is used, and the above-mentioned two types of cutting blades 21A and 21B in the cutter roller 20 are used to remove the above-mentioned label base material 1 to the above-mentioned 2 The two types of labels 10A and 10B were cut out in order, and the two types of labels 10A and 10B were sequentially stacked.

  And in the label laminated body S1 of this embodiment, as shown in FIG. 5, two types of labels 10A and 10B having different positions of the two separation notches 11 thus produced are alternately laminated, The positions of the separation notches 11 in the stacked upper and lower labels 10A and 10B were made different.

  When the labels 10A and 10B are separated one by one from the label laminate S1 by the label take-out device and sequentially taken out, as shown in FIG. On the other hand, gas is blown toward the periphery of the labels 10A and 10B provided with the separation notches 11, and the label 10A (or 10B) located on the uppermost surface of the label laminate S1 is sucked by the suction device 32. To keep it.

  Here, when the gas is blown to the label laminate S1 from the gas ejection device 31 toward the periphery of the labels 10A and 10B provided with the separation notches 11 as described above, the upper label 10A ( Alternatively, gas enters the portion of the separation notch 11 in the lower label 10B (or 10A) provided at a position different from 10B), and the upper and lower labels 10A, 10B are separated by this gas, and thus Only the upper label 10A (or 10B) separated in the above manner is appropriately sucked and held by the suction device 32, so that the labels 10A and 10B can be properly separated and taken out one after another. Became.

  Then, as in the case of the conventional in-mold molding label, the labels 10A and 10B that are separated and taken out one by one as described above are sequentially placed in a molding die (not shown). When the label 10A (or 10B) is attached to the outer peripheral surface 2a of the plastic container 2 simultaneously with the molding of the cup-shaped plastic container 2 as described above, each of these labels 10A and 10B is one sheet. Appropriately affixed to the outer peripheral surface 2a of each plastic container 2 one by one, and two or more labels that are in close contact as in the prior art are led together into the molding die, resulting in defective products. It ’s gone.

  In this embodiment, two types of labels 10A and 10B having different positions of the two separation notches 11 are used, and these two types of labels 10A and 10B are alternately stacked to form the upper and lower labels 10A and 10B. Although the label laminate S1 having different positions of the separation notches 11 is obtained, three or more types of labels having different positions of the separation notches are used, or the number of separation notches provided in each label is one. Alternatively, it is possible to use three or more.

  Further, in this embodiment, the two types of labels 10A and 10B are provided with the concave separation notches 11, but the shape of the separation notches 11 is not particularly limited, and various shapes such as triangles are provided. Can be.

  Here, in order to prevent the separation notches 11 formed on the labels 10A and 10B from becoming noticeable when the labels 10A and 10B are attached to the outer peripheral surface 2a of the plastic container 2 as described above, as shown in FIG. As described above, it is also possible to cut a part of the upper circle arc where the arcs of the labels 10A and 10B are elongated in a straight line so as to provide a slight separation notch 11 in a straight line. . In addition, even if it is such a slight separation notch 11 that is linear, the label is directed from the gas ejection device 31 toward the periphery of each label 10A, 10B provided with the separation notch 11 as described above. When a gas is blown onto the laminate S1, the gas enters the slight separation notch 11 and the upper and lower labels 10A and 10B are appropriately separated by this gas. In addition to cutting a part of the upper circle arc in a straight line, it is possible to cut it into a gentle arc shape having a larger radius than the arc of the upper circle arc.

(Embodiment 2)
Also in the second embodiment, as the label substrate 1, as in the first embodiment, a surface layer 1a made of a resin such as polypropylene, a metal layer 1b such as aluminum, and the surface layer 1a are used. Also used was a laminate in which an adhesive layer 1c made of a resin such as polypropylene having a low melting point was integrally laminated.

  And when producing the label 10 stuck on the outer peripheral surface of the cup-shaped plastic container 2 as shown in said FIG. 2 using said label base material 1 by in-mold shaping | molding, (A), ( As shown in FIG. B), each of the notches 12 having a set of three sets extending from the periphery of the upper circular arc having a substantially fan-shaped plane and a long arc to the upper circular arc is set at two appropriate positions. As shown in FIGS. 9A and 9B, two types of labels 10C and 10D are produced in which the positions of the separating projections 13 protruding downward by the respective notches 12 are different. . Note that the shapes of the labels 10C and 10D can be changed as appropriate in accordance with the shape of the plastic container 2 to which the labels 10C and 10D are attached, as in the case of the first embodiment. The number of separation convex portions 13 formed by 12 can also be changed as appropriate.

  Here, in producing the above two types of labels 10C and 10D, as shown in FIG. 10, in the fan shape provided with the cutting blades 22 corresponding to the positions of the cuts 12 of the labels 10C and 10D. The two types of cutting blades 21C, 21D thus formed are provided on the outer peripheral surface of the roller in order in the circumferential direction using the cutter roller 20, and the above two types of cutting blades 21C, From 21D, the two types of labels 10C and 10D were cut out in order from the label base material 1, and the two types of labels 10C and 10D were sequentially stacked. The cutting blades 22 have a lower blade height than the cutting blades 21C and 21D so as not to cut the labels 10C and 10D.

  In the label laminate S2 of this embodiment, as shown in FIG. 11, two types of labels 10C and 10D having different positions of the separation protrusions 13 thus produced are alternately laminated to form a laminate. The separation convex portions 13 in the upper and lower labels 10C, 10D are not overlapped, and a gap is formed by the separation convex portions 13 in the periphery of the stacked upper and lower labels 10C, 10D. I made it.

  And in separating each label 10C, 10D from the label laminate S2 one by one by the label take-out device and taking them out one by one, the above-mentioned gas jetting device 31 takes the above-mentioned manner as in the case of the first embodiment. A gas is blown toward the periphery of the labels 10C and 10D provided with the separation projections 13 on the label laminate S2, and the label 10C (or 10D) located on the uppermost surface of the label laminate S1 is sucked. It was made to suck | inhale and hold | maintain with the apparatus 32. FIG.

  Here, when the gas is blown onto the label laminate S2 from the gas ejection device 31 toward the peripheral portions of the labels 10C and 10D provided with the separation projections 13 as described above, the upper and lower labels 10C and In the peripheral portion of 10D, gas enters the gap formed by the separation convex portion 13 as described above, and the upper and lower labels 10C and 10D are separated by this gas. Only the label 10C (or 10D) is appropriately sucked and held by the suction device 32, and the labels 10C and 10D can be properly separated and taken out one after another.

  As a result, also in the label laminated body S2 in the second embodiment, as in the label laminated body S1 in the first embodiment, the labels 10C and 10D that are appropriately separated one by one as described above are taken out. Each of the labels 10C and 10D is appropriately held one by one at the same time as the plastic container 2 is molded, and the outer peripheral surface 2a of each plastic container 2 is appropriately held in order in a molding die (not shown). As a result, the two or more labels that are in close contact with each other are not led together into the molding die to cause defective products.

  In this embodiment, two types of labels 10C and 10D having different positions of the separation convex portion 13 protruding downward by the notch 12 are alternately stacked, and the separation convex portions in the upper and lower labels 10C and 10D. Although the label laminate S2 having different positions 13 is obtained, three or more types of labels having different positions of the separation convex portions are used, and the positions of the separation convex portions formed by cutting each label are determined. It is also possible to use one or more than three.

  Further, in this embodiment, as shown in FIG. 11, the labels 10C and 10D are alternately stacked so that the separation convex portions 13 in the labels 10C and 10D protrude downward, but the labels 10C and 10D are alternately stacked. The labels 10C and 10D may be alternately stacked so that the separation convex portions 13 in 10C and 10D protrude upward.

  Further, in this embodiment, in forming the separation convex portion 13 projecting downward by the notch 12 in each of the labels 10C and 10D as described above, the upper circle from the peripheral portion of the upper circular arc having a long arc is formed. Although the arc 12 extending in an arc is provided, as shown in FIG. 12, it is also possible to provide the above-mentioned incision 12 along the arc at the periphery of the upper arc.

  Further, in this embodiment, when the notches 12 are provided in the labels 10C and 10D to form the separating protrusions 13, the notches 12 are prevented from cutting the labels 10C and 10D. As long as the portion 13 is formed, at least a part of the cut 12 may cut the labels 10C and 10D.

  In the first and second embodiments, the case where the label is an in-mold label has been described. However, a normal label that does not have adhesiveness at room temperature should be configured in the same manner as in the above case. Thus, each label can be appropriately separated and taken out from the label laminate in which such labels are laminated.

It is sectional explanatory drawing of the label base material used in embodiment of this invention. In embodiment of this invention, it is the schematic perspective view which showed the state which affixed the label to the outer peripheral surface of the cup-shaped plastic container by in-mold molding. (A) and (B) show two types of labels used in Embodiment 1 of the present invention, and the two planes have a substantially fan shape and have two arcs at different positions in the upper circle arc. It is the schematic plan view which showed the state in which the notch was formed. The cutter roller used for producing the two types of labels used in Embodiment 1 above is shown, and the outer peripheral surface of the cutter roller on which two types of cutting blades corresponding to the shapes of the two types of labels are formed. FIG. It is the schematic side view which showed the label laminated body in said Embodiment 1, and showed the state which laminated | stacked two types of labels from which the position of the notch for a separation differs alternately. It is the schematic explanatory drawing which showed the state which isolate | separated one label at a time with the label extraction apparatus from the label laminated body in said Embodiment 1, and takes out. In said Embodiment 1, it is the elements on larger scale which showed the example of a change of the separation notch provided in a label. (A) and (B) show two types of labels used in Embodiment 2 of the present invention, in which the plane is substantially fan-shaped and the cuts are formed at different positions of the upper arc where the arc is long. It is the schematic plan view which showed the state. (A) and (B) are the two types of labels used in the second embodiment, in which the separation convex portions are formed at different positions of the upper arc where the arc has become longer due to the above-mentioned cutting. It is the schematic side view which showed. 2 shows a cutter roller used to produce two types of labels used in the second embodiment, and shows two types of cutting blades provided with cutting blades corresponding to the cutting positions of the two types of labels. It is an expanded view of the outer peripheral surface of the cutter roller in which is formed. It is the schematic side view which showed the label laminated body in said Embodiment 2, and showed the state which laminated | stacked alternately two types of labels from which the position of the convex part for isolation | separation differs. In said Embodiment 2, it is the elements on larger scale which showed the example of a change which changed the direction of the cut provided in a label.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Label base material 1a Surface layer 1b Metal layer 1c Adhesive layer 2 Plastic container 2a Outer peripheral surface 10,10A-10D Label 11 Separation notch 12 Incision 13 Separation convex part 20 Cutter roller 21A-21D Cutting blade 22 Incision for cutting Blade 31 Gas ejection device 32 Suction device S1, S2 Label laminate

Claims (4)

  A label laminate in which a plurality of labels are laminated, wherein a separation notch is provided in the periphery of each label, and the positions of the separation notches in the upper and lower labels laminated are different.   A label laminate in which a plurality of labels are laminated, wherein a separation convex portion is provided at the periphery of each label, and the positions of the separation convex portions in the upper and lower labels laminated are different. .   The label laminate according to claim 1 or 2, wherein the label is an in-mold label.   In the label take-out device that separates the labels from the label laminate according to any one of claims 1 to 2 and sequentially removes the labels, a peripheral portion of the label provided with a separation notch or a separation convex portion A label ejecting apparatus comprising: a gas ejection device that blows gas toward the label laminated body; and a suction device that sucks and separates a label located on the uppermost surface of the label laminated body.

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